IOS开发 - 自定义CheckBox控件

IOS本身没有系统的CheckBox组件，但是实际开发中会经常用到，所以专门写了一个CheckBox控件，直接上代码

效果图：

UICheckBoxButton.h文件如下：
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#import <UIKit/UIKit.h>
#import "Common.h"

@interface UICheckBoxButton : UIControl
{
    UILabel *label;
    UIImageView *icon;
    BOOL checked;
    id delegate;
}
@property (retain, nonatomic) id delegate;
@property (retain, nonatomic) UILabel *label;
@property (retain, nonatomic) UIImageView *icon;

-(BOOL)isChecked;
-(void)setChecked: (BOOL)flag;
@end

UICheckBoxButton.m文件如下：
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#import "UICheckBoxButton.h"

@implementation UICheckBoxButton
@synthesize label,icon,delegate;

- (id)initWithFrame:(CGRect)frame {
    if ( self = [super initWithFrame: frame])
    {
        icon =[[UIImageView alloc] initWithFrame: CGRectMake (0, 0, frame.size.height, frame.size.height)];
        [self setChecked:NO];
        [self addSubview: icon];
        label =[[UILabel alloc] initWithFrame: CGRectMake(icon.frame.size.width + 7, 0,
                                                          frame.size.width - icon.frame.size.width - 10,
                                                          frame.size.height)];
        label.backgroundColor =[UIColor clearColor];
        label.textAlignment = UITextAlignmentLeft;
        [self addSubview:label];
        [self addTarget:self action:@selector(clicked) forControlEvents: UIControlEventTouchUpInside];
    }
    return self;
}

-(BOOL)isChecked {
    return checked;
}
-(void)setChecked: (BOOL)flag {
    if (flag != checked)
    {
        checked = flag;
    }
    if (checked)
    {
        [icon setImage: [UIImage imageNamed:@"checkBoxSelect.png"]];
    }
    else
    {
        [icon setImage: [UIImage imageNamed:@"checkBoxNoSelect.png"]];
    }
}
-(void)clicked {
    [self setChecked: !checked];
    if (delegate != nil)
    {
        SEL sel = NSSelectorFromString (@"checkButtonClicked");
        if ([delegate respondsToSelector: sel])
        {
            [delegate performSelector: sel];
        }
    }

}
-(void)dealloc {
    delegate = nil;
    [label release];
    [icon release];
    [super dealloc];
}
@end

使用方法：
[html] www.zzzyk.com
UICheckBoxButton *checkBoxButton = [[ UICheckBoxButton alloc] initWithFrame: CGRectMake(30, 50, 220, 25)];
        checkBoxButton.delegate = self.delegate;
        checkBoxButton.label.text = [Common getTextByTag:@"noCostPrompt"];
        checkBoxButton.label.textColor = [Common getColorByTag:@"alertLabelcolor"];
        [self.view addSubview:checkBoxButton];
        [checkBoxButton release];

补充：移动开发 , IOS ,